Abstract: This invention relates to a cylindrical separator apparatus for separating mixtures of solids of different specific gravities, particularly for the mining industry. The apparatus according to the invention is formed by a hollow cylindrical body, which is divided by a partition wall into two consecutive chambers communicating with each other through an axial pipe provided in the partition wall. An axial inlet pipe and an axial outlet pipe are provided in the front walls of said chambers opposite to the partition wall. Tangential inlet pipes and tangential outlet pipes are further provided in the vicinity of the partition wall and of the respective front walls of said chamber.